1. Patricia Balvanera is at the Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, CA, and the Instituto de Ecología, Universidad Nacional Autónoma de México, Morelia, Michoacán, México.
2. Gretchen C. Daily, Paul R. Ehrlich, Taylor H. Ricketts, Sallie-Anne Bailey, Salit Kark, Claire Kremen, and Henrique Pereira are at the Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, CA.